Flop: Even somewhat coordinated as the board is, I'd raise here. You have top pair, and a raise punishes drawing hands for at least another bet. It might not induce a fold, but you earn value for your hand IMO. Besides, if he re-raises here, then you have some more substantial information you otherwise didn't have before.

Turn: The card is a blank, so I think you did the right thing here by raising. I wouldn't say you didn't accomplish anything here - I still think you have top pair and you're earning value on that.

River: I'd call here too probably. The 6 is unfortunate, but the pot is at 16.5 BB by the time the river card hits. You definitely want to see it though.